Brake-shoe.



10.856.188. Y Vl-LSLTENTLDJUNM,1907.

4J. J. TATUM. BRAKE SHOE.

APPLICATION FILED SEPT. 11. IOS.

attenua, 5

{raltimorm -Maryland, have' invented a new f and useful.v Improvement inBrake-Shoes, which improvement is fully set forth .in the followingspecification.

vi i' 't JOHN- J. TATUM, or BALTIMORE, MARYLAND, AssieNoR or ONE-HALF'To nosssalss,

l, Beit. known that I, JOHN J. TATUM, of

v /The present invention relates to brake- -.s hoes,and particularly tosuch brake-shoes 1 as are adapted to receive and have attached 'lo'thereto partially Worn shoes, to the end that the partially worn shoesmay he completely .used up instead of being thrown on the scrap heap.

Means have heretofore been proposed for 1-5 securing partially worntransversely-divided shoes to thev face of other shoes, and means havealso beer suggested for securing partially. Worn continuous shoes to theface of shoes of the same type. The practical obzo jection among othersto the first .class is that the means employed can only be used withtransversely-divided shoes; and to the second class,`that the means forsecuring theshoes together consist 'of iexible or malleable z 5 pins,and, in one instance the shoe is either weakened at the point where itissecured to the brake-head by unduly enlarging the lockingrecess, or,in another instance, the locking. in, by extending into the lockingrecess in t e face of" the shoe, prevents shoes from being'closely andcompactly piled together in shipping the same.

The object of the present invention is to provide a cheap and strongbrake-shoe which may be quickly and effectively locked to the faceofanother shoe-and, if desired, re-l movedftherefrom-tothe end that thesame .is less liable to be broken in handling 'and use, and so' securelyfixed to the associated 40 shoe as to render any accidental separationpractically impossible,

' The invention is illustrated in the accompanying drawings, wherein-Figure 1 is an elevational view, partly in section, illustrating apartiallyworn brakeshoe secured to the wearing face of another shoewhich latter 1s secured to the brake-head; Fig. 2 1s a rear elevation oftwo shoes secured "rtogetherg Fig. 3 is a transverse sectional -view 5f;on Athe line a--a, Fig. 2;-and Fig. 4 1s a view el' .the employed tolock thel shoes to- 'geil ier.

ALOIS P. PRENDERGAST, GF BALTIMORE, MARYLAD.

Patente@ 4, 19o?.

. In said drawings ,r1 is a bralize-Vshoehowlingv attaching lug 2provided Withopening `by which the shoe is adapted tojbe. secured toVthe brake-head 4 by key 5,' as usual; and v41' indicates a partiallyworrrshoe secured to the Wearing face of said first-mentioned shoe.Guiding lugs 6 are formed o nthe rearfof the shoes, and guidingrecesses".'7are provided in the Wearing face of the' shoeforthereeeption of` said lugs 6. Attaching recessisformed in the wearing:face of the Vbrak'e'fshoe, in which recess attaching lug 2 is 4adaptedlto' be inserted when-it is-d'esired to-secureapar tia1l v worn, orother, shoe to the'wearing face of the shoe fastened to theVbrake-head;V .Y

Extending through v.the body of'` the shoe,

and having openings in the rear face thereof,

is a channel or keyway'Q. This channel or keyway intercepts recess 8and` when the attaching luv 2 of a partially Worn shoe is inserted intothe recess 8,'openin 3 therein is, in alinement with said channe Aorkeyway.

To therefore xedly secure the two-shoes`together, it is. only necessa tointroduce a key 10 into said channel or ey'wayy which key passes alsothrough the opening f3 inthe lugk of the partially Worn shoe, thusLiirmly key-v ing together the two shoes. In order topr clude anypossibility of the key beingaccidentally jarred or shaken out of itskeyway,

the latter is provided, preferablyat each en d thereof, with a land orstraight portion 11 arranged at an angle to the curve of the keyway.vWhenbnow, a key has been introi duced to secure two shoes together, itis only necessary tr Vhammer the ends of the key into contact wit 1 saidstraight portion 11-to prevent any accidental displacement .of the same.The removal of the key may be readily eected by prying u vthe ends ofthe same with a chisel, and t ien. simply pulling the key out.. l

What is'c'laimed is:

1. A brake-She rovided in its wearing face with recesse "'adapted toreceive the attaching and guideilu'gs upon the back of another shoe, anda llocking means'at-the rear of said first-me'ntione4 shoe for securingthe latter thereto. .I y.

2. A brake-shoe provided in its Wearing face with recesses adapted toreceive the attaclung and guide Alugs upon the back of an- I van.;

rol

other shoe, 'and a key passing through the; body of said first-mentionedshoe for securing the latter thereto.

3. A brake-shoe provided in its Wearing face with 'recesses adapted toreceive the attaching and guide lugs upon the hack of another shoe, anda keyrpassing into the rear face of said first-mentioned shoe .forsecuring the latter thereto.

4. A brake-shoe provided in its Wearing face with recesses adapted -toreceivethe attaching and guide lugs upon the back of another shoe andprovided with a channel or keyway opening from the back of the shoe anda key adapted to engage in said channel f or keyway to secure the twoshoes together.

5.A brake-shoe provided in its wearing face-With.recesses adapted toreceive the at,

- taching and guide, lugs upon the back of another shoe and providedwith a channel or keyway opening from the back of the shoe wwf" 'n partarranged in said keyway.

.ing witnesses.

and intercepting said attaching recess, and a key 'adapted to lpassthrough said keyway and through the 6. A brake-shoe rovided initsfwearing taehing and guide lugs upon the hack of an` other shoe andprovided with a channel or keyway lnterceptng said attaching recess andhaving openings in the rear-face of the shoe, and a key adapted to p'assthrough said JoHN J. TATUM.

4Witnesses: l D. ARDIN CARRICK,

' GEO. W. CARRICK.

ug in said attaching recess. 1

25 face with recesses a apted'to receive the at-

